Figure 6
The measured reflectivity data of a TiO2 (001) surface contaminated with oleic acid normalized to the Fresnel reflectivity. The measurements were performed under UV light irradiation. The reflectivities measured before UV irradiation (open circles) and at 10 s (green filled circles), 50 s (blue crosses) and 100 s (red triangles) after the beginning of the UV irradiation are shown. |